Integrated valve element of electronic throttle valve

Abstract

The utility model is applicable to the technical field of electronic throttle valves, and particularly relates to an integrated valve core of an electronic throttle valve, which comprises a plastic valve body, the surface of the plastic valve body is connected with an upper end cover, a torsion spring is arranged in the upper end cover, and a plug is arranged on one side of the outer side of the plastic valve body. A driving assembly is arranged in the plastic valve body and the upper end cover, and a first shaft sleeve and a second shaft sleeve are arranged on the two sides of the interior of the plastic valve body correspondingly. The first valve rod, the second valve rod, the connecting sleeve, the inserting block and the valve plate are made of composite plastic materials, and the problems that a traditional metal material is generally large in weight, poor in corrosion resistance, complex in machining and the like in a valve element assembly are successfully solved. The composite plastic material not only greatly reduces the weight of the valve core and further improves the working efficiency of the whole device, but also has excellent wear resistance, high temperature resistance and corrosion resistance, and obviously prolongs the service life of the product.

Description

Technical Field

[0001] This utility model relates to the field of electronic throttle technology, specifically an integrated electronic throttle valve core. Background Technology

[0002] Electronic throttle valves are widely used in automobiles, industrial equipment, and other automated systems, primarily for precisely regulating air or gas flow to control engine intake volume, temperature regulation, or gas intake and exhaust. As a critical control component, the performance of the electronic throttle valve directly affects the efficiency and stability of the entire system. Traditional electronic throttle valve core assemblies are typically made of metal materials. Metal materials, due to their high strength and durability, can withstand significant workloads, ensuring long-term use.

[0003] However, these metal materials generally have some significant drawbacks: First, the weight of metal valve cores increases the overall weight of the equipment, reducing energy efficiency. This is especially true in modern industry, where weight reduction is a key requirement for performance improvement. Second, metal materials have poor corrosion resistance, particularly in complex working environments (such as high temperature, high humidity, and highly corrosive media), where metal valve cores are easily corroded, leading to accelerated surface wear and shortened service life. Finally, the processing of metal materials is complex, especially in manufacturing valve core components with intricate structures, often requiring precision machining and costly molds, increasing manufacturing difficulty and production costs. Therefore, the application of traditional metal materials in electronic throttle valves limits their widespread adoption and development in certain specialized application scenarios. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide an integrated electronic throttle valve core, which aims to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An integrated electronic throttle valve core includes a plastic valve body with an upper cover attached to its surface. A torsion spring is installed inside the upper cover. A plug is provided on one side of the outer side of the plastic valve body. A drive assembly is provided inside the plastic valve body and the upper cover. A first bushing and a second bushing are respectively provided on both sides inside the plastic valve body. A first valve stem is rotatably connected inside the first bushing, and a second valve stem is rotatably connected inside the second bushing. A valve plate is provided between the first valve stem and the second valve stem.

[0007] Connecting sleeves are provided on both sides of the valve plate surface, and the connecting sleeves are provided with insertion interfaces. Insertion blocks are provided at the ends of the first valve stem and the second valve stem that are close to each other, and the shape of the insertion blocks is adapted to the shape of the insertion interfaces.

[0008] The first valve stem, the second valve stem, the plug block, the connecting sleeve, and the valve plate are all made of composite plastic material.

[0009] A sealing ring is provided at the connection between the first valve stem and the plastic valve body, as well as at the connection between the second valve stem and the plastic valve body.

[0010] Furthermore, the connecting sleeve and the plug block are connected together by welding.

[0011] Furthermore, the drive assembly includes a drive motor, which is installed inside the plastic valve body. A drive gear is installed at the output end of the drive motor. A transmission shaft is installed inside the plastic valve body, and a double gear set is sleeved on the outside of the transmission shaft. A sector gear is installed on the outside of the first valve stem.

[0012] One set of gears in the double gear set is meshed with the drive gear, and the other set of gears in the double gear set is meshed with the sector gear.

[0013] Furthermore, the upper end cover has two limiting protrusions inside, and the positions of the limiting protrusions correspond to the positions of the sector gears.

[0014] Furthermore, a magnet is installed at the end of the first valve stem away from the second valve stem, and a PCB board is installed inside the upper cover, with the position of the PCB board corresponding to the position of the magnet.

[0015] The integrated electronic throttle valve core provided by this utility model has the following beneficial effects:

[0016] This invention utilizes composite plastic materials to fabricate the first valve stem, second valve stem, connecting sleeve, plug block, and valve plate, successfully solving the problems of heavy weight, poor corrosion resistance, and complex processing commonly found in traditional metal valve core assemblies. The composite plastic material not only significantly reduces the weight of the valve core, thereby improving the overall efficiency of the device, but also possesses excellent wear resistance, high-temperature resistance, and corrosion resistance, significantly extending the product's service life. Due to the excellent machinability of composite plastics, this design simplifies the manufacturing process, effectively reducing manufacturing costs while ensuring structural strength.

[0017] Furthermore, the valve stem and valve plate are securely connected using plug-in blocks and connecting sleeves, ensuring high-precision fit and stability between all components. This connection method not only prevents the valve stem from loosening or falling off during high-frequency opening and closing processes but also improves the assembly efficiency of the valve core assembly, reduces the complexity and errors of manual assembly, and further enhances the overall reliability and production efficiency of the valve system. This innovative design provides a solid guarantee for the long-term stable operation of the valve and has broad application prospects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an integrated electronic throttle valve core.

[0019] Figure 2 This is a partial cross-sectional view of the front of an integrated electronic throttle valve core.

[0020] Figure 3 This is a schematic diagram of the boundary surface structure of the valve plate in an integrated electronic throttle valve core.

[0021] Figure 4 This is a schematic diagram of the front structure of the valve plate in an integrated electronic throttle valve core.

[0022] Figure 5 This is a schematic diagram of the structure of the first valve stem, sector gear, and connector block in an integrated electronic throttle valve core.

[0023] Figure 6 This is a schematic diagram of the boundary structure of a plastic valve body and drive assembly in an integrated electronic throttle valve core.

[0024] In the diagram: 1. Plastic valve body; 2. Upper end cap; 3. Valve plate; 4. Connecting sleeve; 5. PCB board; 6. Magnet; 7. First valve stem; 8. Torsion spring; 9. First bushing; 10. Second valve stem; 11. Second bushing; 12. Plug; 13. Insertion interface; 14. Insertion block; 15. Sector gear; 16. Limiting boss; 17. Drive gear; 18. Double gear set; 19. Drive motor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0027] like Figures 1-6 As shown in the figure, an integrated electronic throttle valve core provided by this utility model includes a plastic valve body 1, and an upper end cover 2 is connected to the surface of the plastic valve body 1. A torsion spring 8 is installed inside the upper end cover 2. A plug 12 is provided on one side of the outer side of the plastic valve body 1. A drive assembly is provided inside the plastic valve body 1 and the upper end cover 2. A first bushing 9 and a second bushing 11 are respectively provided on both sides inside the plastic valve body 1. A first valve stem 7 is rotatably connected inside the first bushing 9. A second valve stem 10 is rotatably connected inside the second bushing 11. A valve plate 3 is provided between the first valve stem 7 and the second valve stem 10.

[0028] The drive assembly includes a drive motor 19, which is installed inside the plastic valve body 1. A drive gear 17 is installed at the output end of the drive motor 19. A transmission shaft is installed inside the plastic valve body 1, and a double gear set 18 is sleeved on the outside of the transmission shaft. A sector gear 15 is installed on the outside of the first valve stem 7.

[0029] One set of gears in the double gear set 18 is meshed with the drive gear 17, and the other set of gears in the double gear set 18 is meshed with the sector gear 15.

[0030] Connecting sleeves 4 are provided on both sides of the valve plate 3, and the surface of the connecting sleeves 4 has an insertion interface 13. Insertion blocks 14 are provided at the ends of the first valve stem 7 and the second valve stem 10 that are close to each other, and the shape of the insertion blocks 14 matches the shape of the insertion interface 13. The first valve stem 7, the second valve stem 10, the insertion blocks 14, the connecting sleeves 4, and the valve plate 3 are all made of composite plastic material. The connecting sleeves 4 and the insertion blocks 14 are connected together by welding.

[0031] The first valve stem 7, the second valve stem 10, the plug block 14, the connecting sleeve 4, and the valve plate 3 together form the valve core.

[0032] In one embodiment of this utility model, the second valve stem 10 and the first valve stem 7 rotate inside the plastic valve body 1 via the first bushing 9 and the second bushing 11, respectively. Since the first valve stem 7 and the second valve stem 10 are fastened to the connecting sleeve 4 via the plug-in block 14, when the drive assembly drives the first valve stem 7 to rotate, the first valve stem 7, the plug-in block 14, the connecting sleeve 4, the valve plate 3, and the second valve stem 10 can rotate as a whole, thereby realizing the opening and closing operation of the valve plate 3.

[0033] When it is necessary to drive the valve plate 3 to rotate inside the plastic valve body 1, the drive motor 19 can be activated. The output end of the drive motor 19 drives the drive gear 17 to rotate, which in turn drives one set of gears in the double gear set 18 to rotate. The other set of gears in the double gear set 18 rotates synchronously and drives the first valve stem 7 to rotate through the sector gear 15, thereby completing the opening and closing of the valve plate 3.

[0034] The main innovation of this invention lies in the use of composite plastic material to manufacture the first valve stem 7, the second valve stem 10, the connecting sleeve 4, the plug block 14, and the valve plate 3. This solves the problems commonly found in traditional metal materials used in valve core assemblies, such as heavy weight, poor corrosion resistance, and complex processing. The composite plastic material not only has a lighter weight, effectively reducing the overall weight of the valve core and improving the working efficiency of the device, but also possesses excellent wear resistance, high-temperature resistance, and corrosion resistance, extending the product's service life. Furthermore, the composite plastic has strong processability, which simplifies the processing technology and reduces manufacturing costs while ensuring structural strength.

[0035] Another innovation lies in the connection between the valve stem and the valve plate, which uses a plug-in block 14 and a connecting sleeve 4 for fastening, ensuring high precision and tight fit between the components. This connection method not only improves the stability of the valve stem, ensuring that the valve will not loosen or fall off during high-frequency opening and closing, but also improves the assembly efficiency of the components and reduces the complexity and error of manual assembly.

[0036] In this embodiment, sealing rings are provided at the connections between the first valve stem 7 and the plastic valve body 1, as well as between the second valve stem 10 and the plastic valve body 1. This design effectively improves the sealing performance of the valve core. The presence of the sealing rings ensures that the connection between the valve stem and the valve body is not prone to air or liquid leakage, preventing leakage caused by pressure or media flow during valve operation. Through this sealing design, stable airtightness or liquid tightness can be maintained under operating conditions, ensuring the efficient operation of the valve system and avoiding unnecessary energy loss and safety hazards.

[0037] Furthermore, the use of sealing rings offers strong adaptability, enabling them to withstand temperature changes, pressure fluctuations, and media corrosion under different working environments, thus extending the overall service life of the valve structure. Especially under conditions of high temperature, high pressure, or corrosive media flow, sealing rings effectively prevent internal leakage within the valve body, maintaining the valve's normal operation.

[0038] This design also reduces friction between the valve stem and the valve body, improving the smoothness of the valve stem's movement and preventing damage or malfunctions caused by excessive friction. By reducing friction, the valve opens and closes more smoothly, improving the overall user experience and work efficiency.

[0039] In this embodiment, the upper cover 2 has two limiting protrusions 16 inside, and the positions of the limiting protrusions 16 correspond to the positions of the sector gear 15.

[0040] This design effectively limits the range of motion (0-90 degrees) of the sector gear 15, ensuring that it does not over-rotate or deviate during rotation. The rotation of the sector gear 15 is precisely controlled by the limiting boss 16, thus avoiding misoperation or damage caused by excessive gear rotation and improving the stability and reliability of the system.

[0041] The setting of the limiting boss can also reduce gear wear and extend the service life of gears and other transmission components. Because the rotation of sector gear 15 is precisely limited, it can be kept within a relatively stable working range, reducing unnecessary vibration or irregular movement, thereby reducing the risk of mechanical failure.

[0042] Furthermore, the design of the limiting boss 16 facilitates assembly and adjustment. During production and maintenance, it ensures more precise fit between the sector gear 15 and other components, reducing assembly errors and improving assembly efficiency. This enhances product quality control while reducing the complexity of manual adjustments.

[0043] In this embodiment, a magnet 6 is installed at the end of the first valve stem 7 away from the second valve stem 10, and a PCB board 5 is installed inside the upper cover 2, with the position of the PCB board 5 corresponding to the position of the magnet 6. The function of this design is to sense the rotation angle. Through the cooperation of the magnet 6 and the PCB board 5, the rotation angle of the valve stem can be monitored and fed back in real time.

[0044] The installation of magnet 6 generates a magnetic field change when the valve stem rotates. These changes are accurately captured by sensors on PCB board 5 and converted into electrical signals, thus enabling precise detection of the rotation angle. Through this design, the system can accurately know the current position of the valve stem, whether it is in the open, closed, or intermediate position, providing crucial feedback information for the automatic control system.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electronic integrated valve core, comprising a plastic valve body (1), and the surface of the plastic valve body (1) is connected with an upper end cover (2), the inside of the upper end cover (2) is installed with a torsion spring (8), one side of the outside of the plastic valve body (1) is provided with a plug (12), the inside of the plastic valve body (1) and the upper end cover (2) is provided with a driving assembly, characterized in that, The first shaft sleeve (9) is internally rotatably connected with the first valve rod (7), and the second shaft sleeve (11) is internally rotatably connected with the second valve rod (10). Both sides of the surface of the valve plate (3) are provided with the connecting sleeve (4), and the surface of the connecting sleeve (4) is provided with the plug-in port (13). The first valve rod (7), the second valve rod (10), the plug-in block (14), the connecting sleeve (4) and the valve plate (3) are all made of composite plastic material.

2. The integrated electronic throttle valve spool of claim 1, wherein, The connecting part between the first valve rod (7) and the plastic valve body (1) and the connecting part between the second valve rod (10) and the plastic valve body (1) are both provided with the sealing ring.

3. The integrated electronic throttle valve spool of claim 1, wherein, The connecting sleeve (4) and the plug-in block (14) are connected together by welding.

4. The integrated electronic throttle valve spool of claim 1, wherein, The driving assembly comprises a driving motor (19), and the driving motor (19) is installed in the interior of the plastic valve body (1). The output end of the driving motor (19) is provided with a driving gear (17), the interior of the plastic valve body (1) is provided with a transmission shaft, the outer side of the transmission shaft is sleeved with a double gear set (18), and the outer side of the first valve rod (7) is provided with a sector gear (15).

5. An electronic throttle valve integrated spool according to claim 4, wherein The double gear set (18) is rotatably connected with the driving gear (17) and the sector gear (15).

6. The integrated electronic throttle valve spool of claim 1, wherein, The interior of the upper end cover (2) is provided with two limiting bosses (16), and the positions of the limiting bosses (16) correspond to the position of the sector gear (15). The end of the first valve rod (7) away from the second valve rod (10) is provided with a magnetic steel (6), the interior of the upper end cover (2) is provided with a PCB board (5), and the position of the PCB board (5) corresponds to the position of the magnetic steel (6).

Images